12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line + Product Details Size -

+ Product Details Size - 30"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

+ Product Details Size - 6"w X 14"h is the size for the duct opening measurement only

8" Diameter Is The Size For The Duct Opening Measurement Only

ceiling height)

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 32" or 32" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 31. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum